CVE-2007-4389 in 2071 Router
Summary
by MITRE
Cross-site request forgery (CSRF) vulnerability in /xslt in 2wire 1701HG, 1800HW, and 2071 Gateway routers, with 3.17.5, 3.7.1, and 5.29.51 software, allows remote attackers to create DNS mappings as administrators, and conduct DNS poisoning attacks, via the NAME and ADDR parameters.
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Analysis
by VulDB Data Team • 11/29/2024
The CVE-2007-4389 vulnerability represents a critical cross-site request forgery flaw affecting multiple 2wire gateway routers including the 1701HG, 1800HW, and 2071 models. This vulnerability resides within the xslt component of the router's web interface and specifically impacts firmware versions 3.17.5, 3.7.1, and 5.29.51 respectively. The flaw stems from inadequate validation of HTTP requests originating from authenticated sessions, creating a pathway for malicious actors to exploit the router's administrative functions without proper authentication. The vulnerability is categorized under CWE-352, which specifically addresses Cross-Site Request Forgery weaknesses in web applications and network devices.
The technical exploitation of this vulnerability occurs through manipulation of the NAME and ADDR parameters within the router's configuration interface. Attackers can craft malicious web pages or send specially crafted requests that, when visited by an authenticated administrator, will execute DNS mapping changes without their knowledge or consent. This mechanism allows remote threat actors to perform DNS poisoning attacks by altering the router's DNS resolution behavior, potentially redirecting traffic to malicious destinations. The flaw essentially enables unauthorized modification of critical network configuration parameters through a session hijacking technique that bypasses normal authentication mechanisms.
The operational impact of this vulnerability extends beyond simple DNS manipulation to encompass broader network security implications. An attacker who successfully exploits this CSRF vulnerability can fundamentally alter the network's DNS resolution behavior, potentially redirecting traffic from legitimate services to malicious endpoints. This capability enables sophisticated attack vectors including man-in-the-middle attacks, credential theft, and network traffic interception. The vulnerability is particularly dangerous because it operates at the router level, affecting all devices connected to the network, and can persist even after individual device reboots or reconfigurations.
Mitigation strategies for this vulnerability require immediate firmware updates from 2wire, as the issue affects multiple router models with specific firmware versions. Network administrators should implement strict access controls limiting administrative access to the router's web interface to trusted IP addresses only. The implementation of additional security measures such as disabling unnecessary web management interfaces, using secure authentication mechanisms, and deploying network monitoring solutions can help detect unauthorized configuration changes. This vulnerability aligns with ATT&CK technique T1071.004 for application layer protocol manipulation and T1566 for credential harvesting, demonstrating how CSRF flaws can enable broader attack chains. Organizations should also consider network segmentation strategies to limit the impact of potential exploitation and implement regular security assessments to identify similar vulnerabilities in network infrastructure devices.